Epic Industries light weight billet drive couplers for 1996 and up Superjets and Blasters. Weighing in at 1lb. 1oz. with dampner this is the lightest coupler set on the market. This coupler design uses a stock Kawasaki dampner (not included), with the super light billet coupler to drop over 3/4 lbs of rotating mass from the drive train giving improved throttle respone and quicker revving. The new style with the blind hole on the midshaft are available in black, blue, red, and gold anodized.